2023 Porsche 718 Cayman 4.0 GT4 RS

Overview

• Make: Porsche
• Model: 718 Cayman
• Trim: GT4 RS
• Version: 4.0 GT4 RS PDK RWD Euro 6 2dr (493 bhp)
• Year: 2023
• Mileage: 12,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 4.0 litres, 493 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Silver
• CO2: 299 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Porsche 718 Cayman Gt4 RS is advertised with 12,000 miles on the clock. Priced at £128,995, it is advertised £3,038 above the AskCar estimate of £125,957. The AskCar estimate uses UK dealer asking prices, including 314 Porsche 718 Cayman adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 21 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Matt Johnson Prestige in Barrow-in-Furness. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £3,038 (2%) over the AskCar estimate of £125,957.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 314 priced Porsche 718 Cayman adverts across different ages and specifications, as of 7 November 2026.

A 2023 Porsche 718 Cayman with the 4.0 petrol engine is typically advertised at £85,500: the median of the 25 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2023 Porsche 718 Cayman has been on sale for at least 21 days.

Price history

AskCar first saw this advert on 17 October 2026 at £128,995. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 16 June 2027.

It has had one MOT, on 17 June 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 8,444 miles, which matches the advertised 12,000 miles.

Advertised mileage is about 1,000 miles lower than the median mileage of a 2023 Porsche 718 Cayman on AskCar.

Similar cars

7 other 2023 Porsche 718 Cayman GT4 RS 4.0 petrol automatic coupes are for sale at UK dealers, from £121,995 to £144,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2023 Porsche 718 Cayman GT4 RS, 4.0 petrol coupe, grey. Mileage: 11,500 miles. Price: £126,995, £2,000 less than this car. Dealer: GKirby Collection in Warninglid. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2023-68b20817325c
• 2023 Porsche 718 Cayman GT4 RS, 4.0 petrol coupe, red. Mileage: 11,300 miles. Price: £130,000, £1,005 more than this car. Dealer: Rsj Sports Cars in Slough. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2023-fa8e82804ec1
• 2023 Porsche 718 Cayman GT4 RS, 4.0 petrol coupe, white. Mileage: 13,142 miles. Price: £127,900, £1,095 less than this car. Dealer: Baytree Cars in Derby. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2023-cb990236db15

• The nearest: 2023 Porsche 718 Cayman GT4 RS, 4.0 petrol coupe, grey, 67 miles from this car. Mileage: 4,800 miles. Price: £129,995, £1,000 more than this car. Dealer: Riviera Automotive in Cleckheaton. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2023-57a7b55a465a